Identify $X$ from the figure:

  • A
    Respiration and Decomposition
  • B
    Detritus food chain
  • C
    Organic sediments
  • D
    Oil and gas

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Select the incorrect match.
$I.$ Sedimentary nutrient cycle-Nitrogen cycle
$II.$ Pioneer species-Lichens
$III.$ Secondary succession-Burned forests
$IV.$ Pyramid of biomass in sea-Upright

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Provide information about the aquatic weed known as the 'Terror of Bengal'.

The dynamic system of an ecosystem depends on which of the following?

Which one of the following is a characteristic feature of a cropland ecosystem?

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